This paper describes the development of security requirements for nonpolitical Internet voting. The practical background is our experience with the Internet voting within the Gesellschaft für Informatik (GI - Informatics Society) 2004 and 2005. The theoretical background is the international state-of-the-art of requirements about electronic voting, especially in Europe and in the US. A focus of this paper is on the user community driven standardization of security requirements by means of a Protection Profile of the international Common Criteria standard. An extended version of this article (20 pages) is published as technical report by the University in Koblenz (see reference list).